package com.zb_study.Homework06;

public class homework06 {
    public static void main(String[] args) {
        Car car = new Car(60);
        car.getAir().flow();
        Car car1 = new Car(-1);
        car1.getAir().flow();
        Car car2 = new Car(20);
        car2.getAir().flow();
    }
}
